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btrfs: clear __GFP_FS flag in the space cache inode 

the object id of the space cache inode's key is allocated from the relative
root, just like the regular file. So we can't identify space cache inode by
checking the object id of the inode's key, and we have to clear __GFP_FS flag
at the time we look up the space cache inode.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Miao Xie 2011-03-31 09:43:23 +00:00 committed by Chris Mason
parent 6e8df2ae89
commit adae52b94e
2 changed files with 2 additions and 2 deletions
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2
fs/btrfs/free-space-cache.c
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@ -81,6 +81,8 @@ struct inode *lookup_free_space_inode(struct btrfs_root *root,
return ERR_PTR(-ENOENT);
}
inode->i_mapping->flags &= ~__GFP_FS;
spin_lock(&block_group->lock);
if (!root->fs_info->closing) {
block_group->inode = igrab(inode);

2
fs/btrfs/inode.c
View File

@ -2535,8 +2535,6 @@ static void btrfs_read_locked_inode(struct inode *inode)
BTRFS_I(inode)->flags = btrfs_inode_flags(leaf, inode_item);
alloc_group_block = btrfs_inode_block_group(leaf, inode_item);
if (location.objectid == BTRFS_FREE_SPACE_OBJECTID)
inode->i_mapping->flags &= ~__GFP_FS;
/*
* try to precache a NULL acl entry for files that don't have